Amami grenadier (Coryphaenoides marginatus) fish species and information / pictures of Amami grenadier - Coryphaenoides marginatus

Amami grenadier (Coryphaenoides marginatus) fish species information

Scientific Name
Coryphaenoides marginatus

Common Name
Amami grenadier

Biology
Dorsal spines (total): 2; Anal spines: 0. Head almost completely scaled, except for the underside of the snout and anteriorly on the mandibular rami. Snout short, pointed, with stout conical tubercle at its tip and lateral angles; suborbital ridge prominent; mouth small; chin barbel very small. Scales rather deciduous; body scales with slender spinules in 7 to 19 parallel rows. Pyloric caeca 11 to 14, about half of orbit diameter, directed anteriorly. Overall color is purplish brown, lighter ventrally on head and trunk; oral and branchial cavities blackish; fins blackish.

Classification

Classified By

Steindachner & D?derlein, 1887

Class

Ray-finned fishes (Actinopterygii)

Order

Cods (Gadiformes)

Family

Grenadiers or rattails (Macrouridae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: southern Japan to the East China Sea.

Range

35°N - 24°N, 121°E - 140°E

Environment

Climate

Deep-water

Water Temperature From

5 °C

Water Temperature To

7 °C

Depth From - meters

250 m

Depth To - meters

790 m

Zone

bathydemersal

Environment

Marine; bathydemersal; non-migratory; depth range 250 - 790 m (Ref. 1371)

Trophic Level

3.61 s.e. 0.47 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

62.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial

Vulnerability

High vulnerability (57 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated